EP3965664A1 - Dispositif de fermeture - Google Patents

Dispositif de fermeture

Info

Publication number
EP3965664A1
EP3965664A1 EP20754103.8A EP20754103A EP3965664A1 EP 3965664 A1 EP3965664 A1 EP 3965664A1 EP 20754103 A EP20754103 A EP 20754103A EP 3965664 A1 EP3965664 A1 EP 3965664A1
Authority
EP
European Patent Office
Prior art keywords
actuator
fastening
mechanism according
stapler
fastening mechanism
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20754103.8A
Other languages
German (de)
English (en)
Inventor
Paul J. Smith
Jeffrey V. Bean
John R. GOLDEN
Kenneth R. KEENE
Douglas Melanson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boston Scientific Scimed Inc
Original Assignee
Boston Scientific Scimed Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Boston Scientific Scimed Inc filed Critical Boston Scientific Scimed Inc
Publication of EP3965664A1 publication Critical patent/EP3965664A1/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B17/07207—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00101—Insertion part of the endoscope body characterised by distal tip features the distal tip features being detachable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00087—Tools
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00131—Accessories for endoscopes
    • A61B1/00133—Drive units for endoscopic tools inserted through or with the endoscope
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00131—Accessories for endoscopes
    • A61B1/0014—Fastening element for attaching accessories to the outside of an endoscope, e.g. clips, clamps or bands
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
    • A61B2017/00296—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means mounted on an endoscope
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
    • A61B2017/003—Steerable
    • A61B2017/00305—Constructional details of the flexible means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
    • A61B2017/003—Steerable
    • A61B2017/00318—Steering mechanisms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
    • A61B2017/00398—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like using powered actuators, e.g. stepper motors, solenoids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
    • A61B2017/00473—Distal part, e.g. tip or head
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/00862—Material properties elastic or resilient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B2017/07214—Stapler heads
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B2017/07214—Stapler heads
    • A61B2017/07257—Stapler heads characterised by its anvil

Definitions

  • the present disclosure relates generally to tissue stapling. More particularly, at least some embodiments of the present disclosure relate to a fastening
  • mechanism for a medical device for example an endoscopic stapler, and related methods of using the fastening mechanism.
  • Stapling is used in many medical procedures, including laparoscopic procedures for example. These procedures often involve resecting portions or sections of tissue, followed by closing using staples.
  • An exemplary procedure is colorectal anastomosis.
  • a rigid stapler is often used. Linear staplers, which may include long rigid members, may be incapable of being navigated through tortuous anatomy without causing trauma to the tissue.
  • a fastening mechanism includes an actuator, a fastening device attached to a distal end of the actuator, and a device coupler.
  • the fastening device is pivotally attached to the device coupler.
  • the actuator may move longitudinally to pivot the fastening device relative to the device coupler.
  • the fastening mechanism may further include a sheath, wherein the sheath covers a portion of the actuator, and the actuator is longitudinally movable relative to the sheath.
  • the actuator may include at least one inner drive mechanism that actuates the fastening device to open and close the fastening device and/or deploy fasteners.
  • the fastening device may be a stapler that includes a head and an anvil, and the head includes a stapler cartridge from which staples are held and deployed.
  • the stapler cartridge may include a plurality of longitudinal slots from which a plurality of staples are deployed.
  • the head of the stapler may be comprised of a flexible material that allows the head to flex laterally.
  • a proximal end of the actuator may be connected to a controller that operates the fastening mechanism.
  • the controller may operate longitudinally moving the actuator in either direction, opening the fastening device, and/or simultaneously deploying fasteners and closing the fastening device.
  • the actuator may be comprised of a flexible material.
  • the device coupler may include a proximal support fixed to a distal support, wherein the proximal support is fixed to the sheath.
  • the fastening device may be pivotally attached to the distal support of the device coupler.
  • the proximal support may include at least one flexible arm.
  • the distal support may define a lumen with an open distal end or a clear barrier at the end of the lumen.
  • a fastening mechanism includes an actuator, a stapler attached to a distal end of the actuator, a sheath in which the actuator moves longitudinally, and a device coupler for attaching the stapler to an outer surface of a distal end of a medical device.
  • the device coupler includes a proximal support and a distal support, the proximal support is fixedly coupled to the sheath, and the stapler is pivotally attached to the distal support of the device coupler.
  • the medical device may be an endoscope, and the proximal support and the distal support may be fixed to a distal end of the endoscope.
  • the actuator may be longitudinally movable relative to the sheath to pivot the stapler relative to the device coupler.
  • the actuator may include at least one inner drive mechanism that actuates the stapler to open and close the stapler and/or deploy staples.
  • a method of fastening tissue includes inserting an endoscope and a stapling mechanism fixed to an external surface of the endoscope, into a natural orifice of a subject, delivering the endoscope and the stapling mechanism to target tissue, pivoting the stapling mechanism relative to the distal end of the endoscope, positioning tissue between a head and an anvil of the stapling mechanism, and deploying a staple from the stapler mechanism to fasten the target tissue.
  • FIG. 1 is a perspective view of an endoscope according to an
  • FIG. 2 is a perspective view of a stapling mechanism according to an embodiment.
  • FIG. 3 is a perspective view of the stapling mechanism coupled to an endoscope, according to an embodiment.
  • FIG. 4 is another perspective view of the stapling mechanism and endoscope of FIG. 3. Detailed Description
  • distal refers to a portion farthest away from a user when introducing a device into a subject (e.g., patient).
  • proximal refers to a portion closest to the user when placing the device into the subject.
  • Endoscopic stapling may be especially useful in endoscopic, outpatient procedures.
  • the present disclosure may solve one or more of the problems in the art. The scope of the disclosure, however, is defined by the attached claims and not the ability to solve a specific problem.
  • the present disclosure is drawn to systems and devices, and related methods, for a stapling mechanism of a medical device, among other aspects.
  • FIG. 1 an endoscope 10 according to an embodiment is shown.
  • Endoscope 10 includes a flexible shaft 20, a tip 30 at a distal end of endoscope 10, and an articulation joint 50 disposed between and connecting flexible shaft 20 and tip 30.
  • a handle 40 or some other device for actuating or controlling endoscope 10, and any tool or devices associated with endoscope 10, is connected at a proximal end of flexible shaft 20.
  • a plurality of actuating elements may extend distally from a proximal end of endoscope 10 (such as handle 40) to articulation joint 50 and/or tip 30.
  • articulation/actuation wires may be indirectly coupled to first and second actuating devices 42, 43, which control articulation of articulation joint 50 in multiple directions, such as up, down, left, and right.
  • Devices 42, 43 may be, for example, rotatable knobs that rotate about their axes to push/pull actuating elements.
  • actuating elements independently of handle 40. Distal ends of actuating elements extend through flexible shaft 20 and terminate at articulation joint 50 and/or tip 30. For example, one or more actuating elements may be connected to articulation joint 50 and one or more other actuating elements may be attached to tip 30. Actuation of actuating elements may control actuating joint 50, tip 30, and/or elements attached to tip 30, such as an end effector (not shown).
  • one or more electrical cables may extend from the proximal end of endoscope 10 (such as handle 40) to tip 30 and may provide electrical controls to imaging, lighting, and/or other electrical devices in or on tip 30, and may carry imaging signals from tip 30 proximally to be processed and/or displayed on a display.
  • Handle 40 also may include a port 44 for introducing and/or removing tools, fluids, or other materials to and from the patient.
  • a strain relief 46 attaches to an umbilicus for introducing fluid, suction, and/or wiring for electronic components.
  • Endoscope 10 is an exemplary endoscope, in which a stapling mechanism may be attachable. The disclosure is not limited to a stapling mechanism for use in connection with endoscope 10. Any other medical scope (e.g. colonoscope, ureteroscope, duodenoscope, etc.), catheter, sheath, or the like, may be used in combination with the stapling mechanisms of this disclosure.
  • Stapling mechanism 100 for a medical device, including, but not limited to, an endoscope, e.g., endoscope 10, is shown.
  • Stapling mechanism 100 includes an actuator 104, a sheath 102, a device coupler 108, and a stapler 1 14.
  • Actuator 104 is a flexible tube, made of plastic or other suitable
  • Actuator 104 is sufficiently long to extend along a complete length of an endoscope, such as the flexible shaft 20 of endoscope 10, and sufficiently flexible to traverse tortuous anatomy of a patient.
  • the distal end of actuator 104 is attached to the proximal end of stapler 1 14 via a stapler connector 122.
  • the proximal end of actuator 104 at least a portion of which is sheathed by sheath 102, may be connected to any suitable controller or handle known in the art, represented by the box 200, at the proximal end of stapling mechanism 100.
  • Sheath 102 also is a flexible tube, made of plastic or other suitable biocompatible, flexible material. Sheath 102, in embodiments, is sufficiently long to extend along a complete length of an endoscope, such as the flexible shaft 20 of endoscope 10, and sufficiently flexible to traverse tortuous anatomy of a patient.
  • the distal end of sheath 102 is fixedly attached to a sheath connector 106 at coupler 123.
  • the sheath 102 may be coaxial with the actuator 104.
  • the proximal end of sheath 102 also may be connected to any suitable controller or handle known in the art, e.g., box 200, at the proximal end of stapling mechanism 100, in such a manner to permit longitudinal sliding of actuator 104 within sheath 102.
  • the controller may actuate the stapling mechanism to perform operations including, but not limited to, longitudinally moving actuator 104 in either direction (distally or proximally) by extending or pulling on actuator 104 relative to sheath 102.
  • the controller also may control a stapling operation of stapler 1 14, to staple intended target tissue.
  • device coupler 108 has a proximal support 108a, a distal support 108b, and a coupler arm 1 10 connecting proximal support 108a and distal support 108b.
  • Proximal support 108a includes sheath connector 106 and two arms 109 that can wrap around a medical device including, for example, an endoscope shaft or articulation joint.
  • the arms 109 may be flexible, e.g., to elastically deflect, or flex apart from each other. Arms 109 define an opening 108c that accepts the medical device.
  • Each arm 109 may deflect, or flex radially outward to accept the medical device, and be biased radially inward to rigidly couple to the medical device, e.g., to engage
  • proximal support 108a may be in different configurations that may also hold and support a medical device, including, but not limited to, a single flexible arm or a single ring.
  • Sheath connector 106 fixedly attaches proximal support 108a to sheath 102. This may ensure a more stable linkage between device coupler 108 and sheath 102.
  • distal support 108b is an annular, cap-like, ring defining a lumen 108d therein.
  • Support 108b may hold and support a distal end of a medical device including, but not limited to, an endoscope tip.
  • Distal support 108b may have an open distal end.
  • distal support 108b may have a distal end having a transparent, clear cover or barrier, serving as a cap over the distal face of the medical device tip.
  • An open distal end or a clear cap on its distal end allows endoscope 10 to continue its various functions, such as providing a source of light and imaging via its camera, without being impeded.
  • distal support 108b may be substituted with other various supports, embodying different configurations that may also hold and support a medical device.
  • Proximal support 108a is connected to distal support 108b via coupler arm 1 10.
  • Coupler arm 1 10 is grooved, or curved, to accommodate the shape of a medical device resting upon coupler arm 1 10.
  • Distal support 108b is attached to a proximal end of stapler 1 14 via a pivot connection 1 12.
  • Pivot connection 1 12 includes a distal support linking arm 1 12a, stapler linking arms 1 12b, and a pivot pin 1 12c that pins distal support linking arm 1 12a and stapler linking arms 1 12b together.
  • Distal support linking arm 1 12a is fixedly attached to and extends from distal support 108b, while stapler linking arms 1 12b are fixedly attached to and extend from a proximal location of stapler 1 14.
  • Both distal support linking arm 1 12a and stapler linking arms 1 12b have a pin hole.
  • pivot connection 1 12 distal support linking arm 1 12a and stapler linking arms 1 12b overlap with one another, so that distal support linking arm 1 12a lies between the arms of stapler linking arms 1 12b and their respective pin holes align, thereby allowing pivot pin 1 12c to be inserted and pin them together.
  • Pivot connection 1 12 allows for the rotation of stapler 1 14, about pivot pin 1 12c and relative to device coupler 108, by the longitudinal movement of actuator 104 relative to sheath 102.
  • actuator 104 may be extended distally by, for example, an operation of a controller, e.g., box 200, to which it is attached.
  • actuator 104 may be pulled proximally relative to sheath 102, resulting in stapler 1 14 rotating or pivoting in an opposite direction about the longitudinal axis of pivot pin 1 12c.
  • proximal support 108a is fixed, via two arms 109, relative to a distal location of endoscope 10, such as, at articulation joint 50 (referring to FIG. 1 ).
  • arms 109 receive endoscope 10, thereby coupling endoscope 10 to stapling mechanism 100.
  • Fixing stapling mechanism 100 relative to a distal location of endoscope 10 via proximal support 108a provides a base from which actuator 104 extends towards stapler 1 14 to rotate stapler 1 14 in a clockwise or counter-clockwise direction.
  • FIG. 4 is another perspective view of the embodiment shown in FIG. 3.
  • actuator 104 is extended distally, thereby pivoting stapler 1 14 about pivot connection 1 12 in a counter-clockwise direction.
  • the degree by which stapler 1 14 may be rotated clockwise or counter-clockwise may be adjusted based on the degree by which actuator 104 is moved longitudinally in either direction.
  • the further actuator 104 is extended distally, the further stapler 1 14 will pivot about pivot connection 1 12 in a counter-clockwise direction, until the rotation of stapler 1 14 is impeded by the presence of device coupler 108.
  • the further actuator 104 is pulled proximally, the further stapler 1 14 will pivot about pivot connection 1 12 and rotate in a clockwise direction, until the rotation of stapler 1 14 is impeded by the presence of device coupler 108.
  • FIG. 4 also illustrates stapler 1 14 in an open position.
  • the distal ends of an anvil 1 16 and a head 1 18 of stapler 1 14 are spaced apart, thereby forming a gap in which materials including, but not limited to, tissue may be held within and stapled together.
  • a closed position inner surfaces of anvil 1 16 and head 1 18 are in a closest position relative to each other, so that very little gap, or no gap, exists between the inner surfaces of anvil 1 16 and head 1 18, as illustrated in FIG. 3.
  • Stapler 1 14 can be opened or closed by anvil 1 16 pivoting about a stapler pivot 120, which holds anvil 1 16 and head 1 18 together at a proximal location of stapler 1 14.
  • Actuation of a drive mechanism opens and closes stapler 1 14.
  • a wire 124 is within a lumen of actuator 104, and the distal end of wire 124 connects to a proximal end of anvil 1 16.
  • the proximal end of wire 124 may connect to a controller (not shown) at the proximal end of stapling mechanism 100.
  • a controller not shown
  • anvil 1 16 may rotate about stapler pivot 120, to open stapler 1 14.
  • Pushing wire 124 distally may rotate anvil 1 16 about stapler pivot, to close stapler 1 14.
  • FIG. 4 further illustrates that head 1 18 includes a stapler cartridge 126, from which one or more staples may be held and deployed.
  • the mechanism of deploying staples may be actuated by another drive mechanism (not shown), e.g. a second inner drive mechanism, within the lumen of actuator 104.
  • the form of this second inner drive mechanism is not particularly limited, and it may be in the form of another wire (not shown) within actuator 104. The distal end of this second inner wire may connect to a mechanism with head 1 18 that will deploy one or more staples.
  • the proximal end of the second inner wire may connect to a controller (not shown), which may trigger the second inner wire to actuate the deployment of a staple from head 1 18, by operation thereof.
  • Inner wire 124 and the second inner wire (for deployment of staples) may work in conjunction, by operation of a controller, to simultaneously deploy a staple and close the stapler, thereby securely stapling an intended target, e.g., tissue.
  • wire 124 that opens and closes stapler 1 14 and the second drive mechanism for deploying one or more staples may be operated from the same controller.
  • the different drive mechanisms may be operated by different controllers.
  • head 1 18 may contain a plurality of staples in stapler cartridge 126, which may be deployed from stapler cartridge 126 when under the influence of a driving force exerted by an actuation sled (not shown), as disclosed in U.S. Patent Application No. 62/812,538,“Systems, Device, and Related Methods for Fastening Tissue”, filed March 1 , 2019, the contents of which are incorporated herein by reference in their entirety.
  • Head 1 18 may have longitudinal slots (not shown) which may permit staples to pass through stapler cartridge 126 and pierce an intended target, e.g., tissue.
  • an actuation mechanism may be arranged to move proximally in a longitudinal direction from a distal end of stapler cartridge 126 toward a proximal end of cartridge 128 when actuated, contacting staples within stapler cartridge 126 and activating the staples through longitudinal slots, or a surface of the stapler cartridge, in order to couple staples to target tissue.
  • the actuation mechanism may be arranged to move distally in a longitudinal direction from a proximal end of stapler cartridge 126 toward a distal end of stapler cartridge 126 when actuated. In either manner, actuation mechanism may be actuated via the second drive mechanism, as discussed above.
  • actuation of a second inner wire in actuator 104 via a controller, may deploy staples into target tissue.
  • a single staple may extend through each slot.
  • Each staple may be partially within the slot prior to deployment to assist with alignment of the staple with the slot.
  • two (or more) actuation mechanisms may be required to actuate two (or more) different longitudinal rows of staples in stapler cartridge 126.
  • head 1 18, including stapler cartridge 126 may be comprised of any appropriate biocompatible material, including flexible materials that may permit head 1 18 to flex laterally during insertion into, or positioning within, the body of the subject. Such flexibility may further permit stapler 1 14 to be carefully navigated through tortuous anatomy without causing trauma to surrounding tissue.
  • Anvil 1 16 may include a groove (not shown) positioned longitudinally that may align with the longitudinal slots of head 1 18, when stapler 1 14 is in a closed position (see FIG. 3). Once head 1 18 is actuated to deploy a staple and the legs of a deployed staple pierce through an intended target, the groove may act as a receiving base that effectively anvils the legs of a staple, as stapler 1 14 is being closed, so that the deployed staple is securely fastened to target tissue.
  • a user may couple or attach stapling mechanism 100 to a medical device, e.g., endoscope 10, and deliver mechanism 100 and endoscope 10 into the body of a subject, e.g., via a natural orifice (such as a mouth or anus) and through a tortuous natural body lumen of the subject, such as an esophagus, stomach, colon, etc.
  • a medical device e.g., endoscope 10
  • deliver mechanism 100 and endoscope 10 into the body of a subject, e.g., via a natural orifice (such as a mouth or anus) and through a tortuous natural body lumen of the subject, such as an esophagus, stomach, colon, etc.
  • a user may direct mechanism 100 and endoscope 10 to an intended target site by various means, including imaging.
  • a user may open stapler 1 14, if it is closed, by operation of a controller (not shown), which triggers wire 124 to pivot anvil 1 16 about stapler pivot 120.
  • a user may then rotate stapler 1 14 in a clockwise or counter-clockwise direction by operation of the same or a different controller (not shown) that is attached to actuator 104, which may be moved longitudinally in either direction via the controller. It is noted that a user may also choose to rotate stapler 1 14 first, and then open stapler 1 14 after rotation thereof.
  • the order of the stapler rotation and opening steps may be reversed and is not limited to a particular order.
  • a user may manually maneuver the stapler or employ a mechanical means (not shown), including, but not limited to a grasper, suction, etc., that assists in placing the intended target, e.g., tissue, within the stapler, so that the intended target is positioned between head 1 18 and anvil 1 16 of stapler 1 14.
  • a user may then staple the intended target by operating the same or a different controller, which triggers another drive mechanism, such as a wire, to actuate the deployment of a staple from stapler cartridge 126. Actuation of the controller may simultaneously deploy a staple and close the stapler, thereby stapling an intended target.
  • stapling mechanism 100 including, but not limited to, rotation of stapler 1 14, opening/closing of stapler 1 14, and the deployment of staples from stapler cartridge 126, may be actuated by operation of the same controller, or different controllers.

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  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Surgical Instruments (AREA)

Abstract

L'invention concerne un mécanisme de fermeture qui comprend un actionneur, un instrument de fermeture fixé à une extrémité distale de l'actionneur, et une pièce d'accouplement d'instrument, l'instrument de fermeture étant fixé de manière pivotante à la pièce d'accouplement d'instrument.
EP20754103.8A 2019-07-24 2020-07-23 Dispositif de fermeture Pending EP3965664A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962877958P 2019-07-24 2019-07-24
PCT/US2020/043230 WO2021016436A1 (fr) 2019-07-24 2020-07-23 Dispositif de fermeture

Publications (1)

Publication Number Publication Date
EP3965664A1 true EP3965664A1 (fr) 2022-03-16

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EP20754103.8A Pending EP3965664A1 (fr) 2019-07-24 2020-07-23 Dispositif de fermeture

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US (1) US20210022720A1 (fr)
EP (1) EP3965664A1 (fr)
JP (1) JP2022542050A (fr)
CN (1) CN114173684A (fr)
WO (1) WO2021016436A1 (fr)

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JP2022542050A (ja) 2022-09-29
CN114173684A (zh) 2022-03-11
US20210022720A1 (en) 2021-01-28
WO2021016436A1 (fr) 2021-01-28

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